Mixing-machine.



C. H. J. DILG. MIXING MACHINE. APPLICATION FILED MAR. 26, 1913.

Patented Apr. 18, 1916.

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C. H. J. DILG. MIXING MACHINE.

APPLICATION FILED MAR. 26. I913.

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ED STATES PAT .,'CHARLES H. J. DILG, OF YORK, N. Y.

MIXING-MACHINE.

Specification of Letters Patent.

Patented Apr. 18, 1am.

Application filed March 23, 1913. Serial No. 757,044.

To all 'wkomz 't may concern:

Be it known that I, CHARLES H. -J. DILG, a citizen of the United States, residing in the borough of the Bronx, city of New York,

county of New York, and State of New .York, have invented certain new and useful and means embodying my invention are par:

-my invention in claims.

:ticularly adapted for mixing, stirring or agitating liquids, powders and other like miscible substances, mashing soft materials into pulp, freezing ice cream, making emulsions, churning, etc.

' One object of my invention is to produce a device of this kind which will cause an inti-' mate and thorough mixing or amalgamating of theringredientsior the vsubstance being treated. V

Other objects of my invention are simplicity, durability and economyv of construction, and facility in operation.

Still other objects and advantages of my inventionwill appear from the'following descriptio i 'My invention consists of various advantageous features oficonstruction and arrangements and combinations of parts, as

will hereinafter more fully appear.

I shall now describe the embodiments of my invention illustrated in the accompanying drawings and shall thereafter point out Figure 1" is a central sectional elevation of a machine embodying my invention, on line 1-1 of Fig. 2. Fig. 1 is'a detail in end elevation of a modified form of paddle, with two arms broken away. Fig. 2 is a planof the same with the cover, the locking bar and the operating handle-removed. Fig. 3 is a view corresponding to Fig. l and showing a modification of myinvention. Fig. 4 is a plan of the same corresponding to Fig. 2. Fig. 5 a view corresponding to Fig. 1' taken on an irregular planeof section and showing another modification of my invention. -Fig. 6 is a plan of the same corresponding to Fig. 2, thepaddles being omit ted for clarity of illustration.

In the embodiment of my invention illustrated in Figs. 1 and 2, I employ a preferably cylindrical containing vessel 1 provided of their meshin with a cover 2. Mounted for rotation within the vessel upon an axis coincident with that of ,the vessel is a frame 3, shown as substantially rectangular and extending diametrically of the vessel, and suitably pivoted at the bottom, as upon an upwardly proje-cting central pivot 4: on the bottom of the vessel which engages in a corresponding pivot socket in the bottom of the frame 3. The casing 1 is preferably mounted obliquely upon a base 5 for reasons which will appear hereinafter, and it is soshown, though for convenience of illustration the base is shown oblique and the vessel relatively vertical.

At its top the frame 3 isprovided with a' central axially projecting shaft 6, which is secured at its inner end as by a pin to the top of the frame 3 and extends upwardly therefrom through a central opening in the cover 2 and serves as the upper pivot or ournal for the frame 3. Mounted loosely upon this shaft 6 is a gear wheel 7, the hub of which has a square'upper end and projects through a; central opening in a keeper bar 8 secured to the top of the frame 3 and raised up therefrom. A locking bar 9 has bifurcated downwardly-extending flanged ends fitting over lugs 10 on diametrically opposite-sides of the inner wall of the vessel 1, and this locking bar has a square central opening fitting over the square upper end of the hub of the gear wheel 7, and the gear wheel is thereby held against rotation.

A plurality of parallel shafts, shown as two, 11 and 11*, aremounted in the frame- 3 and extend parallel to its axis of rotation, and the lower ends of these shafts are journaled in hearings in the bottom of the frame 3, and on the upper end of each shaft is fixed a pinion 12 disposed between the keeper bar 8 andthe top of the frame 3 and arranged in mesh with the gear wheel 7.

The upper end of the shaft 6 which projects through the cover 2' may be squared, and a removable crank 13 is adapted to fit over this as a means for manual ac'tuation of the shaft. It is now apparent that, as the shaft 6 is rotated, the frame 3 will be rotated and that the shafts 11 and 11 and their pinions 12 will be revolved therewith about a common axis, and that as a result with the stationary gear wheel 7, the pimons will be rotated as they are thus revolved, and that the shafts 11 and 11 will be thereby given a compound movement, consisting of rotation upon their own axes and a revolving movement about the axis of the frame 3.

As a means for agitating and mixing the material contained in the vessel 1, the shafts 11 and 11* are provided with a series of paddles, each consisting of a radially extending member and a plurality of members carried by the radial member and extending at an angle therefrom, preferably atright angles thereto, as shown. The shaft 11 in this embodiment is provided with two paddle devices, each paddle device being mounted at its middle upon the shaft 11 and having two radially extending arms 14 and two radially extending arms 15, and each arm being provided with two upwardly extending paddle members 16 and two downwardly extending paddle members 17. The shaft 11 in this embodiment is provided with three paddle devices, each consisting of the two radially extending arms 14 andtwo radially extending arms 15, and the middle one being dis- .posed. in a plane substantially midway between those of the two paddle devices on the shaft 11, and being provided with upwardly and downwardly extending members 16 and 17, similar to those carried by the shaft 11. The other two paddle devices also consist of the'four arms 14 and 15 and one is arranged in a plane above the upper paddle device on the shaft 11 and the other is arranged in a plane below the lower paddle device on the shaft 11, the former being provided with the downwardly extending paddle members 17 and the latter being provided with the'upwardly extending paddle members 16.

The paddle devices on the two shafts 11- and 11 are of suchlength that they rotate in overlappin planes and, since they are arranged in t e same relative angular disposition on the shafts 11 and 11 and since they are rotated at the same speed, the angularly extending members 16 and 17 on the two shafts intermesh during their rotation, as shown in Fig. ,1. They, therefore,

operate upon the material in every part ofthe container. In addition to thisoverlapping and inter'meshing of the rotating paddles, the paddles are so shaped and arranged that they produce in their rotation a plu-' rality of series of compound and complex currents flowing in diflerent directions. To effect this, the component members of the paddle devices are obliquely inclined, the

paddle arms 14 being'oppositely inclined to.

the paddle arms 15, and the angularly extending members 16 being oppositely inclined to the members 17, and the paddles on the two shafts being so arranged that the intermeshing members are oppositely inclined, with the result that the paddles of one series set up currents which intersect and are opposed-to those set up by the other series of paddles, and a great variety of oppositely flowing currents are produced which serve to very thoroughly disintegrate and mix the material being treated. The

bottom and sides of'the frame 3 are also provided with or composed Ofobliquely set.

blades 3- which 'rotate' in proximity .to the walls .of the vessel 1 and draw the material away from the walls of the vessel toward the 1 vertical, asshown in Fig. 1 those on; one side of the shaftbeing Inclined oppositely to those-onthe other side of the shaft. By these means the currents set upv by them are at' an angle to the horizontal and the cur.- rents setup by those on one side 'of the shaft intersects the currents created bythose on the opposite'side of the shaft, and a'thorough mixing results. In assembling the parts, the frame'3 and parts carried thereby are first inserted in theirproper positions,

the locking bar 9 is then placed on, andfinally the-cover 2 and handle 13.put on.

' The construction shown in Figs. 3 and 4 difiers from that shown in Figs. 1 and 2 in that instead of the-shaft 6, a shaft 6"extends' to the bottom of the frame and carries paddles similar tothe shaft 11 previously described, and arranged on opposite sides of.

this are two shafts 11, each carrying paddles similar to-those on shaft 11 of the previous constructions. Thus three series of rotative paddles are provided,the outer two of whichalso revolve'about the rotative axis of the central series ofpaddles. I

By means of my improved. mixer I produce a series of currents flowing in opposite directions, in approximately a. horizontal plane, and also a series of currentsmoving in approximately a vertical plane in opposite directions, and the result is a very thorough agitation and mixing of the in-' gredients or contents of the vessel. By rea son of having the'containing vessel mounted obliquely on its b'ase,the action of gravity is added as an additional element in causing a change of position of theparticlesfof the material being mixed, and thereby. a. more thorough mixing of the material 1s obtained.

By drawing the material away from the bottom and sides of the vessel during the operation of the device, the material is all brought within the radius of the paddles and the clogging of the paddlesis also prevented.

The construction shown in Figs. 5 and 6 differs from that shown in Figs. 3 and 4 in that, instead of a cylindrical vessel, a vessel 1 of the form of a truncated cone with its lower end the smalleris used, and the frame 3 is madecorrespondingly narrower at the bottom than it is. at the top. In addition the shafts 11 are displaced from the parallel,

tive disposition as in Fig. 5, and the lower end of one shaft 11* being set in toward and back of the central shaft 6, and the lower end of the other shaft 11 being set in toward and forward of the central shaft 6, the frame 3 being correspondingly skewed, as

'shoWn in Fig. 6. The paddles 14 and 15 on the shafts ll are,-therefore, arranged at anangle to the horizontal, and, consequently, the angularly extending members 16 and 17 are disposed at an angle to the vertical axis of the vessel and. tend to create currents in an oblique direction as the paddles are rotated, thereby causing a very effective agitation and mixture of the contents of the vessel. As a result of this construction, the gear wheels 12 are turned at an angle to the gear Wheel 7, and they, consequently, are provided with skew bevel teeth. The cover 2,

the locking bar 9 and the keeper bar 8 are also shaped to conform to the'top of the gear wheels.

in, two outer rotative paddle-bearing shafts mounted in the vessel and arranged with .their lower ends offset from a plane passing through the axis of the central shaft and containing the centers of the upper ends of the outer shafts, three series of substantially 1 radially"extending paddles, one series carried by each shaft, the paddles of the central shaft being adapted tooverlap those of the two outer shafts during their rotation, and

. means to simultaneously rotate the three shafts. I

2. A mixing machinecomprising a containing vessel, a central axlally-extendlng rotative paddle-bearing shaft mounted there-- in, two outer rotativej paddle-bearing shafts mounted in the vessel and arranged with their lower ends offset from a plane passing through the axis of the central shaft and containing the centers of the upper ends of the outer shafts three serieslof substantially radially extending paddles, one 'series carried by each'lshaft, the paddles of the central shaft being adapted to overlap those of the two outer shafts during theirrotation, -means- I to simultaneously; rotate the three shafts,

. -'and means. to revolve the two about the central shaft. v a

- 3.- A'mixingmachine comprising a 'sub I stantially truncatedconical vessel, a central axially-extending .rotative paddle-bearing shaft mounted therein, two outer rotative paddle-bearing shafts. mounted in the vessel the. difierent series bein dles, tlie paddles and the angularly disposed outer shafts,

substantially parallel to the sides thereof and'arranged with their lower ends oifset from a plane passing through the axis of angularly-disposed members of the different series of paddles being arranged to inter mesh during the rotation of the paddles, and means to simultaneously rotate the three shafts.

4. A mixing machine comprising asubstantially truncated conical vessel, a central axially-extending rotative paddle-bearing shaft mounted therein, two outer rotative paddle-bearing shafts mounted in the vessel I substantially arallel to the sides thereof and It 1s obvlous that various other modificaone series carried by each shaft, the paddles of the central shaft being adapted to over: lap those of the twoouter shafts during their rotation, angularly-disposed' members car ried by the. paddlesfand extendingtransversely tothe plane of rotation, the angualarly-disposed members of the different series of paddles being arranged to intermesh during the rotation of the paddles, the paddles and theangularly-disposed members of obliquely inclined so as to create a series" of currents flowing in opposite directions, and means to simultaneously rotate the three shafts.

'5. A mixing machine comprising a containing vessel, a plurality of rotative paddle-bearing shafts mounted therein, a plurality of series .of radially extending paddles, one, series carried by each shaft, the paddles of the different series being adapted toi overlap during their rotation, angularly disposed members carried by the paddles and (extending transversely to the plane of rotation, the angularly disposed members of the different series of paddles'being arranged to intermesh during. th rotation of the padmembers ,of the different series being ob- .liquely inclined in opposite directions, so as to create a series 'ofcurrents flowing in opposite' directlons, 'andimeans to-rotate the.

bearingshafts mounted therein, a pluralityshafts and to revolve at least one of them about substantially the' central axis of the of series of radially extending paddles, one series carried by each shaft, the paddles of the different series being adapted to overlap during their rotation, angularly disposed members carried by the paddles and extending transversely to the plane of rotation, the angularly' disposed members of the difierent series of paddles being arranged to intermesh during the rotation of the paddles, the paddles and the angularly disposed members of the difi'erent series being obliquely inclined in opposite directions so as to create a series ZJBQOQO of currents flowing opposite directions,

means revoluble near the wall of the containing Vessel to draw the material being treated away from the inner face of the vessel, and

common actuating means.

In testimony whereof, I have afliz'zed my G. BAMMANN, WM. A; LINDSAY. 

